<template>
  <div class="container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- ref=loginFormRef  loginFormRef就是form的实例对象  可以调用方法-->
      <el-form
        ref="loginFormRef"
        :model="loginFrom"
        :rules="loginFormRules"
        label-width="0px"
        class="login_form"
      >
        <el-form-item prop="username">
          <el-input
            v-model="loginFrom.username"
            prefix-icon="iconfont icon-user"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginFrom.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <el-form-item class="login_btn">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="loginFormReset">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginFrom: {
        username: 'admin',
        password: '123456'
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入登录名称', trigger: 'blur' },
          { min: 3, max: 6, message: '长度在 3 到 6 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 16, message: '长度在 6 到 16 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    loginFormReset() {
      //   console.log(this);
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      //   valid为布尔值 校验通过返回true
      this.$refs.loginFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginFrom)
        if (res.meta.status !== 200) return this.$message.error('登陆失败')
        this.$message.success('登录成功')
        // console.log(res);
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('home')
      })
    }
  }
}
</script>

<style lang="less" scoped>
.container {
  position: relative;
  width: 100%;
  height: 100%;
  background-color: #2b4b6b;
  .login_box {
    width: 500px;
    height: 300px;
    background-color: #fff;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    .avatar_box {
      width: 130px;
      height: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);
      background-color: #fff;
      img {
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #ccc;
      }
    }
  }
}
.login_form {
  position: absolute;
  bottom: 0px;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.login_btn {
  display: flex;
  justify-content: flex-end;
}
</style>
